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Finding the Fourth Proportional to 327,510.40, 490,968.60 and 117,099.40

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Solution

The fourth proportional to 327,510.40, 490,968.60 and 117,099.40 is: 175,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,510.40 : 490,968.60 = 117,099.40 : x
  2. Step 2: Convert to fraction form
    327,510.40/490,968.60 = 117,099.40/x
  3. Step 3: Cross multiply
    327,510.40x = 490,968.60 × 117,099.40
  4. Step 4: Simplify right side
    327,510.40x = 57,492,128,478.84
  5. Step 5: Solve for x
    x = 57,492,128,478.84/327,510.40
  6. Step 6: Final answer
    x = 175,542.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.